Model NO.: PMDI100~105
Molecular Principal Chain: Heterochain Polymer
Appearance: Waxy Solid
Using Mixture Ratio (Phr): 5.6-8.1
Hardness (Shore a): 60-95
Tearing Strength (Kn/M): 78.4/135.0/135.7/70.6/123.2/127.5
Akron Abrasion(Cm3/1.61km): 0.03-0.08
Transport Package: According to The Customer Demand
HS Code: 3921199000
Synthetic Resin: Unsaturated Polyester Resin
Nco Content(%): 5.5~8.0
Life in The Reaction Kettle: 5-10
Tensile Strength (MPa): 51.3/55.3/57.2/41.7/45.5/52.8
Elongation at Break(%): 516/520/498/461/577/558
Origin: China Anhui
The classification of polyurethane elastomer is divided from the traditional processing methods, divided into casting polyurethane elastomer, mixing polyurethane elastomer and thermoplastic polyurethane elastomer.Due to the different raw materials, synthesis and processing methods and application purposes, reactive polyurethane elastomer (RIMPU) and solution dispersed polyurethane elastomer were also introduced.According to the formation of the form is divided into solid and liquid system. Also according to the raw material chemical composition to the general polyester or polyether, so there have polyether polyurethane elastomers and polyester polyurethane elastomer.
|polyol MDI system||P-MDI--100||P-MDI -101||P-MDI -102||P-MDI -103||P-MDI -104||P-MDI -105|
|Prepolymer||Appearance (25oC)||Waxy solid||Waxy solid||Waxy solid||Waxy solid||Waxy solid||Waxy solid|
|Using Mixture Ratio (PHR)||5.6~6.6||6.7~7.3||7.6~8.6||5.1~6.1||6.1~6.9||7.3~8.1|
|Life in the Reaction Kettle (75~78oC/min)||8~10||5~7||5~7||8~10||5~7||5~7|
|Physical properties of finished products||Hardness (Shore A)||60±5||85±5||95±5||60±5||85±5||95±5|
|Tensile Strength (MPa)||51.3||55.3||57.2||41.7||45.5||52.8|
|Tearing Strength (kN/m)||78.4||135.0||135.7||70.6||123.2||127.5|
|Elongation at Break (%)||516||520||498||461||577||558|
|Akron Abrasion (cm3/1.61km)||0.08||0.05||0.03||0.08||0.05||0.03|
-Mainly used in the production of polyurethane elastomer products with the corresponding requirements, such as a variety of industrial components, roller, rubber roller, rubber, oil seal, cushion material, plate, etc..
-Can be used for manual operation, more suitable for the operation of the casting machine, chain extender are BDO and TMP, etc.
-The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used
-After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal.
-The storage period of unopened prepolymer is three months.
-If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.